@article{Johnson2024, author = {Johnson, S.B. and Kuehn, M. and Lambert, J.O. and Spin, J.P. and Klein, L.M. and Howard, B. and Sturner, R. and Perrin, E.M.}, title= {Developmental milestone attainment in US children before and during the COVID-19 pandemic}, year = {2024}, doi = {10.1001/jamapediatrics.2024.0683}, volume = {178}, number = {6}, pages = {586}, }